Often confused for local flora, the Revwien are a sentient species of plant. When resting, they move very little and draw nutrients up from the ground they are resting on. Locomotion occurs through the use of its leaves around the base of them, which use hydraulic power to strengthen the leaves while still allowing for movement. Typically, two of these leaves will be raised, acting as arms and hands. Tiny bud stalks on the top of the main body act as visual organs, and these support a clear seed case used in replication.

The Revwien come in many colours, both to attract mates or pollinating creatures, and to tune their light-gathering abilities to the spectrum coming from the local sun. Light from different stars can cause the Revwien to become 'starved' unless they change their colours to better absorb the wavelength of light coming from the nearest sun. This colouring can also help to differentiate between different communities of Revwien.

The Revwien are a very patient and peaceful race, and honest to a fault. This can be traced back to their plant beginnings, with their race having no natural lifespan and so could live forever if supplied with sufficient nutrients and light. Because of this, the Revwien find death very disconcerting and dislike being in the presence of people that habitually cut down plants for their benefit.